All categories

3 years ago

Acrostic: Dihydrogen Monoxide

1 answer:

5 0

D - Dangerous substance
I - It's colorless and odorless
H - Harmful to people and property
Y - You can't taste it
D - Disrupts cell membranes
R - Reactive Hydroxyl Radical
G - Gene and DNA mutations
E - Explosive compounds
N - Neurotransmitters can be critically altered

M - Most people don't know what it its
O - Only people who look into it will find out
N - Nothing can survive without it
O - Otherwise safe
X - X marks the spot, you can find it on many maps
I - Included in everything
D - Drinkable, it's safe
E - Especially because it's WATER, H2O

You might be interested in

How many grams of ethane gas (C2H6) are in 12.7-liter sample at 1.6 atmosphere and 24 degrees Celsius? Show all work used to sol

pentagon [3]

Data:
M (Molar Mass) of C2H6
C = 2*12 = 24 amu
H = 6*1 = 6 amu
---------------------
MM C2H6 = 24+6 = 30 g/mol

P (pressure) = 1.6 atm
V (volume) = 12.7 L
<span>R = 0,082 atm .L/mol.K
n (</span>Number of mols) → $n = \frac{m}{MM} m (mass) = ? T = 24ºC Celsius to Kelvin TK = TºC + 273 TK = 24 + 273 TK = 297 By the equation of state of the gases or equation of Clapeyron, we have:
 [tex]P*V = n*R*T$ <span>

Since </span> $n = \frac{m}{MM}$ <span>, we can perform the following substitution in the above Clapeyron equation:
</span>

$P * V = n * R * T$
$P*V = \frac{m}{MM} *R*T$
multiply cross
$m = \frac{P*V*MM}{R*T}$

Solving:
$m = \frac{P*V*MM}{R*T}$
$m = \frac{1.6*12.7*30}{0.082*297}$
$m = \frac{609.6}{24.354}$
$\boxed{\boxed{m \approx 25.03\:grams}}\end{array}}\qquad\quad\checkmark$

Answer:
25.03 grams of ethane gas

5 0

3 years ago

3. A mechanical pencil has a mass of 47.4 grams. The volume of the pencil is 15.8 cubic centimeters. What is the density of the

Morgarella [4.7K]

Answer:

<h3>The answer is 3 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{47.4}{15.8} \\$

We have the final answer as

Hope this helps you

5 0

3 years ago

What is decomposition reaction ??<br>don't spam ❌

Sphinxa [80]

Answer:

<em><u>Decomposition reactions are processes in which chemical species break up into simpler parts. Usually, decomposition reactions require energy input. For example, a common method of producing oxygen gas in the laboratory is the decomposition of potassium chlorate (KClO3) by heat.</u></em>

Explanation:

hope it will help u

7 0

3 years ago

What is the pOH of a 0.025 M [H+] solution? A.0.94 B.1.60 C.12.40 D.13.06

Greeley [361]

Answer:

option C= 12.40

Explanation:

Formula:

pH + pOH = 14

First of all we will calculate the pH.

pH = - log [H⁺]

pH = - log [0.025]

pH = - (-1.6)

pH = 1.6

Now we will put the values in formula,

pH + pOH = 14

pOH = 14-pH

pOH = 14 -1.6

pOH = 12.4

The pOH of solution is 12.4.

6 0

3 years ago

How many atoms are present in 0.529 moles of Li?

nirvana33 [79]

Answer:

<h2>3.18 × 10²³ atoms</h2>

Explanation:

The number of atoms can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 0.529 × 6.02 × 10²³

We have the final answer as

<h3>3.18 × 10²³ atoms</h3>

Hope this helps you

6 0

3 years ago